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CVE-2025-53544— Trilium Notes is Vulnerable to Brute-force Protection Bypass via Initial Sync Seed Retrieval

Quick assessment

Affected
TriliumNext Trilium
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Trilium Notes是Zadam个人开发者的一个分层笔记应用程序。专注于构建大型个人知识库。 Trilium Notes 0.97.0之前版本存在安全漏洞，该漏洞源于初始同步种子检索端点存在暴力破解保护绕过，可能导致未经身份验证的攻击者猜测登录密码。

CVSS 7.5 · High EPSS 0.37% · P28
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I. Basic Information for CVE-2025-53544

Vulnerability Information
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Vulnerability Title
Trilium Notes is Vulnerable to Brute-force Protection Bypass via Initial Sync Seed Retrieval
Source: CVE Program / CVE List V5
Vulnerability Description
Trilium Notes is an open-source, cross-platform hierarchical note taking application with focus on building large personal knowledge bases. In versions below 0.97.0, a brute-force protection bypass in the initial sync seed retrieval endpoint allows unauthenticated attackers to guess the login password without triggering rate limiting. Trilium is a single-user app without a username requirement, and brute-force protection bypass makes exploitation much more feasible. Multiple features provided by Trilium (e.g. MFA, share notes, custom request handler) indicate that Trilium can be exposed to the internet. This is fixed in version 0.97.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
过多认证尝试的限制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Trilium Notes 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Trilium Notes是Zadam个人开发者的一个分层笔记应用程序。专注于构建大型个人知识库。 Trilium Notes 0.97.0之前版本存在安全漏洞，该漏洞源于初始同步种子检索端点存在暴力破解保护绕过，可能导致未经身份验证的攻击者猜测登录密码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
TriliumNext Trilium < 0.97.0 -

II. Public POCs for CVE-2025-53544

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 7045 chars
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III. Intelligence Information for CVE-2025-53544

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IV. Related Vulnerabilities

Same product: Trilium
Same vendor: TriliumNext
Same weakness: CWE-307

V. Comments for CVE-2025-53544

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